Establishes a binding between a given property of the receiver and the property of a given object specified by a given key path.
- macOS 10.3+
The key path for a property of the receiver previously exposed using the
The bound-to object.
A key path to a property reachable from
observable. The elements in the path must be key-value observing compliant (see Key-Value Observing Programming Guide).
A dictionary containing options for the binding, such as placeholder objects or an
NSValueidentifier as described in Constants. This value is optional—pass
nilto specify no options.